#include <stdio.h>

int main(void)
{
  for (int i = 1; i < 10; i++) {
      switch (i) {
          case 1:
              printf("1");
              break;
          case 2:
              printf("2");
              break;
          case 3:
              printf("3");
              break;
          case 4:
              printf("4");
              break;
          case 5:
              printf("5");
              break;
          case 6:
              printf("6");
              break;
          case 8:
              printf("8");
              break;
          case 9:
              printf("9");
              break;
          case 10:
              printf("10");
              break;
      }
  }

  return 0;
}
